This magazine fits Walther PPQ M1 Classic firearms that are chambered in 9mm. The capacity is 15 rounds. PPQ M1 mags will only work with the M1 PPQ (classic) firearm which has a lever release on the trigger guard. Several states restrict mags with capacities of 11 or more rounds. Some locations have stricter capacity requirements. Orders placed for magazines that are not legally allowed in the delivery location will be cancelled.